Chair control release and locking cam for tiltable chairs



FIG. 1 is a front perspective view of a release and locking cam showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof, the right side being identical in appearance;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a chair control release and locking cam for tiltable chairs, as shown and described. 